Wavelength and filter arrangement for WDM networks

Details Wavelength and filter arrangement for WDM networks Wavelength and filter arrangement for WDM networks

2005-04-26

2005-04-26

Sedighian, M. R. (Department: 2633)

Optical communications

Multiplex

Optical local area network

C398S003000, C398S004000, C398S005000

Reexamination Certificate

active

06885822

ABSTRACT:
In a ring having first and second adjacent nodes, and two fibers carrying information between the first and second nodes, the first fiber carries information in one direction, while the second fiber carries information in another direction. Each fiber includes wavelength capacity allocated to working and protection traffic. The working and protection wavelength capacities in the first fiber are respectively assigned to first and second disjoint sets of wavelengths, while the working and protection wavelength capacities in the second fiber are respectively assigned to the second and first disjoint sets of wavelengths.

REFERENCES:
patent: 6084694 (2000-07-01), Milton et al.
patent: 6249510 (2001-06-01), Thompson
patent: 6473397 (2002-10-01), Au
patent: 6525852 (2003-02-01), Egnell

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